[Presentation API] reject request.start() with OperationError instead of UnknownError if previous s…

content/renderer/presentation/presentation_dispatcher.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/presentation/presentation_dispatcher.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 36 matching lines @@
 
 blink::WebPresentationError::ErrorType GetWebPresentationErrorTypeFromMojo(
     blink::mojom::PresentationErrorType mojoErrorType) {
   switch (mojoErrorType) {
     case blink::mojom::PresentationErrorType::NO_AVAILABLE_SCREENS:
       return blink::WebPresentationError::ErrorTypeNoAvailableScreens;
     case blink::mojom::PresentationErrorType::SESSION_REQUEST_CANCELLED:
       return blink::WebPresentationError::ErrorTypeSessionRequestCancelled;
     case blink::mojom::PresentationErrorType::NO_PRESENTATION_FOUND:
       return blink::WebPresentationError::ErrorTypeNoPresentationFound;
+    case blink::mojom::PresentationErrorType::PREVIOUS_START_IN_PROGRESS:
+      return blink::WebPresentationError::ErrorTypePreviousStartInProgress;
     case blink::mojom::PresentationErrorType::UNKNOWN:
     default:
       return blink::WebPresentationError::ErrorTypeUnknown;
   }
 }
 
 blink::WebPresentationConnectionState GetWebPresentationConnectionStateFromMojo(
     blink::mojom::PresentationConnectionState mojoSessionState) {
   switch (mojoSessionState) {
     case blink::mojom::PresentationConnectionState::CONNECTING:
@@ skipping 502 matching lines @@
 PresentationDispatcher::AvailabilityStatus::AvailabilityStatus(
     const GURL& availability_url)
     : url(availability_url),
       last_known_availability(false),
       listening_state(ListeningState::INACTIVE) {}
 
 PresentationDispatcher::AvailabilityStatus::~AvailabilityStatus() {
 }
 
 }  // namespace content